Home / 261,319,063.91-392,250,990.99-115,854,780.56

Finding the Fourth Proportional to 261,319,063.91, 392,250,990.99 and 115,854,780.56

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Solution

The fourth proportional to 261,319,063.91, 392,250,990.99 and 115,854,780.56 is: 173,902,936.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,319,063.91 : 392,250,990.99 = 115,854,780.56 : x
  2. Step 2: Convert to fraction form
    261,319,063.91/392,250,990.99 = 115,854,780.56/x
  3. Step 3: Cross multiply
    261,319,063.91x = 392,250,990.99 × 115,854,780.56
  4. Step 4: Simplify right side
    261,319,063.91x = 45,444,152,485,588,992
  5. Step 5: Solve for x
    x = 45,444,152,485,588,992/261,319,063.91
  6. Step 6: Final answer
    x = 173,902,936.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.